67results about How to "Reduce temperature difference" patented technology

The invention discloses a semiconductor laser and a temperature control method, the semiconductor laser comprises an outer shell, a driving plate, a laser light source module and a liquid cooling plate, the outer shell is fixed on the liquid cooling plate, the driving plate and the laser light source module are both arranged on the liquid cooling plate, and the driving plate and the laser light source module are both located in the outer shell. The laser light source module comprises a light source shell, a vapor chamber, a TEC semiconductor chilling plate, a laser component PCB, a first temperature sensor and a second temperature sensor. According to the semiconductor laser and the temperature control method provided by the invention, the TEC semiconductor chilling plate is adopted to finely control the temperature of a laser component, heat dissipation is integrally performed through a vehicle body liquid cooling system, and the power consumption fluctuation is reduced while the stability of the internal temperature of the laser light source module is maintained.

This application belongs to the field of semiconductor processing technology, specifically relating to a backlight reflective layer printing device and its application. This application effectively controls the vibration generated during the printing process by optimizing the mechanical structure and position design of the frame, support plate device, and multi-axis spindle, reducing the deviation between the actual operating path and the planned path of the piezoelectric jet valve. This significantly improves the stability of the piezoelectric jet valve operation and the printing accuracy. Furthermore, this application, by setting up a micro-adjustment device, a positioning system, an inkjet calibration system, and a needle alignment device, and utilizing their coordinated relationship, can precisely correct printing parameters such as the jetting position or jetting volume of the piezoelectric jet valve. Therefore, based on the aforementioned stable printer body structure, the coating quality of the backlight reflective layer obtained by piezoelectric jet printing will be further improved. Thus, the backlight reflective layer prepared using this invention has better thickness uniformity and a better reflective effect.

The present application relates to a kind of composite preparation methods for metal-based ceramic composite material, as follows: one, ceramic preform production: ceramic preform mould is made;After pretreatment, ceramic particles, binder, mixed powder are mixed, filled into mould, twice solidification treatment, and ceramic preform is prepared;Two, metal-based ceramic composite material composite preparation: ceramic preform is fixed in cavity, and metal sheet is placed in the both sides of ceramic preform or between two ceramic preforms;Temperature sensor probe is inserted into cavity;After closing, it is placed in electromagnetic induction coil, and heating is carried out;When metal sheet reaches set temperature, keep warm, when ceramic preform reaches required temperature, electromagnetic induction heating system is closed;Pouring metal liquid, cooling and solidification demoulding;Three, post-processing: quenching and tempering treatment are carried out.The present application solves the problem that ceramic preform and metal liquid temperature difference is too large during metal liquid casting, resulting in poor composite effect, low product yield and unsatisfactory use effect.

The embodiment of the application relates to the technical field of intelligent bathroom, and discloses a cleaning system and a water path control method. The cleaning system comprises a sterilization device, a heating device, an electrolytic water device and a water conveying device; the sterilization device, the heating device, the electrolytic water device and the water conveying device are connected with each other in pairs to form a water path passage; after a cleaning liquid enters the cleaning system, the cleaning liquid flows through the sterilization device, the heating device and the electrolytic water device in sequence and then flows out from a water outlet of the water conveying device. The cleaning system provided by the application can reduce temperature difference feeling while ensuring that the cleaning liquid is safe and harmless to human bodies, improve user use comfort, and enable the cleaning liquid to have a bacteria killing function; the electrolyzed cleaning liquid is sprayed on the surface of a cleaning rod or a toilet bowl, so that the cleaning rod or the toilet bowl is ensured to be clean and pollution-free.

The application discloses a hot-press bonding head and a bonding device, relates to the technical field of chip bonding, and aims to solve the problem that the upper and lower surfaces of an existing liquid cooling plate have a significant temperature difference, which easily causes thermal bending deformation, thereby affecting bonding precision and quality. The hot-press bonding head comprises a supporting base, a liquid cooling plate is arranged on one side of the supporting base, a cooling flow channel is arranged in the liquid cooling plate, a heating disc is arranged on the side of the liquid cooling plate opposite to the supporting base, and the liquid supply pipeline and the gas supply pipeline of a heat exchange system are selectively in fluid communication with the inlet of the cooling flow channel. In the case that the heating disc is heated, the gas supply pipeline is in fluid communication with the inlet of the cooling flow channel, so that the gas is continuously supplied into the cooling flow channel. In the case that the heating disc stops heating, the liquid supply pipeline is in fluid communication with the inlet of the cooling flow channel, so that the cooling liquid is continuously supplied into the cooling flow channel. The application is used for reducing the risk of liquid cooling plate thermal bending deformation caused by the inconsistent temperature rise of the upper and lower surfaces of the liquid cooling plate.

The application belongs to the technical field of fluorine-containing fine chemical synthesis, and particularly relates to a preparation method of 2-bromoheptafluoropropane. Liquid heptafluoropropane and liquid bromine are heated and vaporized, sent into a static mixer, mixed, and then sent into a tubular reactor for bromination reaction. The reactor comprises a preheating section and four reaction sections connected in sequence. The temperature of the preheating section is controlled to be 300-350 DEG C. According to the material flow direction, the center temperatures of the four reaction sections are controlled to be 500-505 DEG C, 500-505 DEG C, 495-500 DEG C and 490-495 DEG C in sequence. The mixed gas after reaction is sent into a quenching device for cooling, and then subjected to defluorination, water washing, alkali washing, dehydration and condensation separation to obtain high-purity 2-bromoheptafluoropropane. The application integrates full-silicon material containers, multi-section intelligent partition heating and rapid quenching, significantly improves reaction conversion rate and operation stability, and finally improves product quality and reduces production cost.

The utility model relates to a tube plate structure for a heat exchanger and a winding tube type heat exchanger, and the tube plate structure comprises a heat-conducting tube plate main body which is provided with a first plate surface facing a tube pass medium in the heat exchanger and a second plate surface facing a shell pass medium in the heat exchanger, a plurality of tube holes penetrating through the first plate surface and the second plate surface are formed in the tube plate main body at intervals; an annular groove extending in the circumferential direction is formed in the second plate surface of the tube plate main body, and the annular groove is formed in the periphery of each tube hole; the tube plate structure further comprises an annular check ring which is arranged in the annular groove in the circumferential direction so as to shield a groove opening of the annular groove. A through hole for a shell pass medium to enter the annular groove is formed in the check ring, or / and a gap for the shell pass medium to enter the annular groove is formed between the periphery of the check ring and the corresponding inner wall of the notch in a spaced mode. The tube plate structure disclosed by the utility model can bear a larger temperature difference between a tube pass medium and a shell pass medium.

The present application relates to the technical field of metal material heat treatment, in particular to a heat treatment furnace device and method capable of controlling temperature and cooling speed, wherein the furnace body is internally constituted as a hearth, the output end of the air supply system is located at the lower region of the hearth through the furnace body; the flow equalizing system is arranged at the lower region of the hearth and is in communication with the output end of the air supply system; the workpiece is placed on the flow equalizing system; the circulation and exhaust system is arranged at the upper region of the hearth and is in communication with the interior of the hearth, the temperature monitoring system is arranged on the circulation and exhaust system and is directly above the workpiece; the control system is electrically connected with the air supply system, the circulation and exhaust system and the temperature monitoring system. The present application effectively solves the problems of insufficient cooling speed and poor cooling uniformity in the prior art.

This utility model discloses a flue assembly and a gas water heater, relating to the field of water heater technology. The flue assembly has independent exhaust channels and air channels. The exhaust channel is configured to communicate with the exhaust port of the gas water heater, and the air channel is configured to communicate with the air inlet of the gas water heater. The air channel has at least a first channel section, through which air flowing through the first channel section can exchange heat with the flue gas in the exhaust channel. A baffle is provided within the first channel section. This utility model's technical solution can prevent or significantly reduce the generation of condensate in gas water heaters.

The invention belongs to the technical field of fuel cells, and particularly relates to a high-power closed cathode air-cooled fuel cell metal bipolar plate, an electric pile, a system and a design method.The metal bipolar plate specifically comprises an anode plate, a cooling plate and a cathode plate which are arranged in an upper-layer structure, a middle-layer structure and a lower-layer structure; a plurality of anode runners for anode fuel gas to flow are arranged in the anode plate; a plurality of cathode runners for cathode reaction air to flow are arranged in the cathode plate; a plurality of cooling straight flow channels for cooling gas to flow are formed in the cooling plate; the effects of high power density and low cathode voltage of the fuel cell are achieved by a regionalized metal bipolar plate configuration, and the problems of high parasitic power consumption and the like of an air compressor caused by low power density and large cathode voltage drop of the fuel cell under a high-power working condition in the prior art are effectively solved.

This invention discloses an anti-condensation and diversion structure for cable branch boxes, belonging to the field of smart grid technology. It includes a cable branch outer box, within which a diversion hopper and a partitioned inner cavity are provided. The diversion hopper is located below the top of the partitioned inner cavity. This invention divides the upper part of the cable branch outer box into a double-layer structure through the partitioned inner cavity, effectively reducing the temperature difference between the inside and outside of the outer box and lowering the probability of condensation from the source. Combined with a heat-insulating and rainproof frame, it provides dual protection against rain and heat. When condensation occurs on the inner wall of the partitioned inner cavity, it is diverted by the diversion hopper and collected in a cleaning component, preventing condensation from dripping and corroding internal electrical components. Simultaneously, a dehumidification component filters and absorbs moisture from the outside air entering the cable branch outer box, effectively reducing moisture accumulation inside the outer box and comprehensively minimizing condensation, ensuring a dry and stable internal environment for outdoor power distribution equipment in the smart grid.

The utility model discloses an intake manifold, an engine and a vehicle, and relates to the technical field of engine intake, the intake manifold comprises a manifold body, the manifold body is provided with a pressure stabilizing cavity, a bent waste gas channel, a gas inlet communicated with the pressure stabilizing cavity, a gas outlet communicated with the pressure stabilizing cavity, a waste gas inlet communicated with the bent waste gas channel and a waste gas outlet communicated with the bent waste gas channel, and the waste gas outlet is communicated with the position, close to the gas outlet, of the pressure stabilizing cavity. According to the technical scheme, condensate water generated in the pressure stabilizing cavity is reduced.

The utility model belongs to the technical field of heat pumps, and discloses a heat pump system which is characterized in that a control valve group can selectively enable any one of a first heat exchange unit and a first heat exchange channel to be connected into a water return pipeline; when a user has no hot water using requirement and the tail end water using device has the heating requirement, the heat pump assembly does not work, the heat source device provides hot water for the tail end water using device, meanwhile, part of return water of the tail end water using device is fed into the first heat exchange unit, water in the inner container is preheated, and the water temperature in the inner container is made to be higher than the environment temperature; the heat energy is stored by water in the inner container; when a user suddenly needs to use hot water, the heat pump assembly is controlled to work, water in the inner container is heated through the heat pump assembly, the temperature of the water in the inner container is higher than the environment temperature due to the fact that heat energy is stored in the water, and the temperature difference between the water temperature needed by the user and the current water temperature of the inner container is reduced; therefore, the time for the heat pump assembly to lift the water in the inner container to the required water temperature is shortened, and energy consumption of a compressor of the heat pump assembly is reduced.

The utility model relates to the technical field of tundish flow control, in particular to a magnesium flow stabilizer for a tundish, which comprises a hollow magnesium body, the top of the magnesium body is provided with an opening, the inner bottom of the magnesium body is provided with a corundum drainage body coaxial with the magnesium body, and the corundum drainage body is provided with a circular top surface; wherein the inner bottom surface of the magnesian body is an arc-shaped surface which is in smooth transition with the inner wall surface of the magnesian body and the outer wall surface of the corundum drainage body; by means of the smooth arc transition design of the inner bottom face of the magnesium body and the outer wall face of the corundum drainage body, turbulence and local scouring during flowing of molten steel are effectively reduced, the high hardness characteristic of the corundum drainage body is combined, erosion to the magnesium body is remarkably reduced, and the service life is prolonged. The inner wall face of the magnesium body is designed to be a conical face, the flow speed of molten steel is guided to be evenly distributed, and local scouring aggravation caused by sudden change of the flow speed is avoided.

The invention discloses a sandwich type aerosol product which comprises a heating body and an aerosol generating substrate, the heating body is formed by folding a body in the length direction of the heating body, the body is arranged in a plane shape, the heating body comprises a plurality of folding planes, a gap is formed between every two adjacent folding planes, and the aerosol generating substrate is folded and filled in part of or all the gaps. The body of the heating body in the sandwich type aerosol product is arranged in a plane shape, the temperature rising speed is high, the energy consumption is obviously reduced, and the high-temperature stability is high; a large heat exchange area is formed between the folded planes of the heating body and the folded aerosol generating substrate, the folded planes are opposite in pairs, heat radiation influences each other, and the overall temperature difference of the area nearby the heating body is reduced.

The present application relates to the technical field of ceramic fiber filter tube production and processing, in particular to an oven internal heat recovery structure for ceramic fiber filter tube processing, comprising an oven and a heat exchanger arranged on one side of the oven, a hot air circulation assembly is further arranged on the top of the inner wall of the drying chamber, a heat energy recovery assembly is arranged on the top of the oven, and a workpiece preheating assembly is arranged in the preheating chamber. The present application recovers the moisture heat energy discharged from the inside of the drying chamber through the heat energy recovery assembly, and then sends it into the inside of the workpiece preheating assembly, and then preheats the surface of the filter tube, so as to reduce the temperature difference, thereby effectively improving the drying efficiency of the filter tube in the inside of the drying chamber, and recycling the heat energy in the discharged moisture in the inside of the drying chamber to the filter tube, which not only effectively reduces the energy consumption and improves the energy utilization rate, but also effectively saves energy and protects the environment during the ceramic fiber filter tube processing.

The utility model discloses a refining device for steel casting production, which relates to the technical field of steel casting production and processing and comprises a bottom plate, a refining box, a moving mechanism arranged on the bottom plate, a fixing mechanism arranged on the bottom plate, a supporting column, a rotating mechanism arranged on the supporting column and a lifting mechanism arranged on the rotating mechanism. The starting mechanism, the first stirring roller, the fixing rod, the L-shaped scraping plate and the second stirring roller are arranged on the lifting mechanism; through cooperation of a starting mechanism, a first stirring roller, a fixing rod, an L-shaped scraping plate and a second stirring roller, the first stirring roller and the second stirring roller are driven to rotate, molten steel is fully stirred, the molten steel is evenly mixed, the temperature difference between the molten steel is reduced, heating is even, and the refining effect is improved; and through cooperation of the rotating mechanism and the lifting mechanism, the first stirring roller, the fixing rod, the L-shaped scraping plate and the second stirring roller are driven to move out of the refining box, and cleaning by a user is facilitated.

This application discloses an easy-to-clean cooking appliance and a method for cooking rice. The cooking appliance includes a pot body with a accommodating cavity and an inner pot. The pot body is equipped with a cooling device, and the inner wall of the accommodating cavity has air vents. The accommodating cavity has a first cooling side and a second cooling side, which are arranged opposite to each other. The cooling device has a first working state of sending airflow from the first cooling side to the second cooling side, and a second working state of sending airflow from the second cooling side to the first cooling side. The two working states alternate to allow cold air to circulate and cool the inner pot, causing condensation to form on the inner wall of the inner pot. The cold airflow in the accommodating cavity changes direction at regular intervals, alternately cooling the inner pot on the first and second cooling sides. This reduces the temperature difference between the two sides of the inner pot, improves the uniformity of cooling, ensures the non-stick effect of the inner pot in all areas, and enhances the user experience.

The utility model provides a kind of mixed combustion device, belong to gas combustion technical field, including outer tube and inner tube, the inner tube is fixed in outer tube inside by support, inner tube axis coincides with outer tube axis, the outer tube one end is connected by flange with biomass gas pipeline, the inner tube one end is connected by flange with natural gas pipeline.The utility model can reduce the temperature difference between biomass gas and natural gas, ensure combustion efficiency, improve the service life and safety of equipment.

This application discloses a trench filling method, comprising: placing a wafer on a vacuum chuck of a CVD machine, the wafer being used to integrate a trench-type MOS device, the wafer having trenches formed on its surface, and an oxide layer formed on the wafer and trench surfaces; the vacuum chuck being disposed in the reaction chamber of the CVD machine; preheating the wafer, during which the pressure in the reaction chamber of the CVD machine is a first pressure value; evacuating the reaction chamber of the CVD machine, activating the vacuum adsorption function of the vacuum chuck, and increasing the pressure in the reaction chamber of the CVD machine to a second pressure value; evacuating the reaction chamber of the CVD machine; increasing the pressure in the reaction chamber of the CVD machine to a third pressure value, the third pressure value being greater than the second pressure value; and depositing a silicon dioxide layer on the wafer using a CVD process. This application, by performing stress relief pretreatment on the wafer using a vacuum chuck, can effectively increase the adsorption capacity of the chuck, ensuring a tight fit between the wafer and the chuck.

The invention relates to the technical field of water electrolysis hydrogen production, in particular to an SOEC water vapor electrolysis system and an operation method thereof, and the SOEC water vapor electrolysis system comprises an SOEC galvanic pile, a water vapor input assembly, a hydrogen input assembly, an air input assembly and a water vapor secondary heater; the hot side of the water vapor secondary heater is arranged at the downstream of the air input assembly and the upstream of an SOEC electric pile anode inlet, and hot air in the air input assembly enters an SOEC electric pile anode through the hot side of the water vapor secondary heater; the cold side of the water vapor secondary heater is arranged at the downstream of the water vapor input assembly and the hydrogen input assembly and the upstream of the cathode inlet of the SOEC stack, and water vapor and hydrogen enter the cathode of the SOEC stack through the cold side of the water vapor secondary heater; the water vapor and the hydrogen on the cold side exchange heat with the hot air on the hot side in the water vapor secondary heater, and the water vapor secondary heater is arranged to be a downstream heat exchanger, so that the gas temperature difference between the cathode inlet of the SOEC stack and the anode inlet of the SOEC stack is reduced, and the temperatures of the cathode inlet and the anode inlet of the SOEC stack are convenient to control.

The application discloses a free telescopic and detachable phase change heat storage and exchange device, which comprises a shell, one end of the shell is a fluid inlet, the other end is a fluid outlet, a phase change module is arranged in the shell, the phase change module comprises a shell layer phase change module and an internal phase change module of the shell, the shell layer phase change module is arranged close to the inner wall of the shell, and the internal phase change module of the shell is arranged in the cavity of the shell layer phase change module. The device has the advantages of the tube-shell type and the plate type phase change heat exchanger, the heat storage and release rate is obviously higher than that of the existing plate type and tube-shell type phase change heat storage and exchange devices, and the problems of thermal expansion and cold contraction of the PCM module are effectively solved. The device has the advantages of high heat storage density, fast heat storage and release rate, compact structure, less heat loss, no expansion and cracking problems, no melting "dead zone", easy disassembly, installation and cleaning and the like. Compared with the prior art, the device has outstanding substantial characteristics and significant progress.

The invention provides an anti-condensation control method, a controller and a power converter, and is applied to the technical field of power electronics. If it is determined that the target power device meets the preset condensation condition based on the current device temperature of the target power device and the current internal environment temperature, the temperature difference between the device temperature of the target power device and the internal environment temperature of the power converter is reduced, so that condensation at the target power device is avoided; the insulation performance of the target power device is ensured, and the safety of the power converter is improved.

The utility model relates to the technical field of water heating equipment, and discloses an air pressure taking pipe and gas water heating equipment. The wind pressure pipeline comprises a wind pressure inner pipe and a wind pressure outer pipe, the wind pressure outer pipe is arranged outside the wind pressure inner pipe in a sleeving mode, a closed heat insulation cavity is formed between the wind pressure outer pipe and the wind pressure inner pipe, one end of the wind pressure inner pipe is communicated with the pressure tapping opening of the fan, and the other end of the wind pressure inner pipe is communicated with the wind pressure switch. By adopting the double-layer pipeline design of the wind pressure outer pipe and the wind pressure inner pipe, on one hand, external air is structurally prevented from being in direct contact with the wind pressure inner pipe, and on the other hand, heat insulation between high-temperature airflow in the wind pressure inner pipe and external low-temperature air is achieved through the heat insulation cavity in the aspect of heat transfer; the temperature difference between the inner pipe wall and the outer pipe wall of the wind pressure inner pipe is reduced, and therefore the wind pressure taking pipe can effectively restrain generation of condensate water on the inner wall of the wind pressure inner pipe, further reduces generation of the condensate water, and guarantees normal work of the wind pressure taking pipe.

The utility model discloses a fog-cooling quenching device, which relates to the technical field of quenching devices and comprises a support, a round tube is rotatably connected onto the support and is driven by a stepping motor to rotate around the axis of the round tube in a reciprocating manner, a plurality of atomizing nozzles are uniformly connected to the outer side of the round tube along the axial direction of the round tube, one end of the round tube is connected with a liquid conveying tube, and the other end of the round tube is connected with a water pump. The liquid inlet end of the liquid conveying pipe is connected with a variable frequency pump. According to the fog quenching device, a cooling medium can preferentially act on the thick-wall area of the profile, the cooling effect of the thick-wall area is enhanced, the temperature difference between the thin part and the thick part of the profile is reduced, and the twisting degree is reduced; meanwhile, the water pressure is adjusted through the variable frequency pump, the spraying strength of the atomizing nozzle is controlled, and the temperature difference between the thick wall and the thin wall can be further reduced.

This invention discloses a power battery module based on a PCM heat absorber plate, comprising a battery pack consisting of several cylindrical batteries arranged in an array; a PCM heat absorber plate, the interior of which is filled with a thermally conductive porous structure and paraffin phase change material, which absorbs heat through melting of the phase change material to reduce battery temperature; the PCM heat absorber plate is provided with several sleeve structures, the sleeves being connected front and rear along the air-cooling flow direction via sleeve connecting plates, and the cylindrical batteries being mounted on the PCM heat absorber plate through the sleeve structures; heating strips, located at the bottom of the PCM heat absorber plate and perforated, fitting around the sleeves, used to heat the battery pack at low temperatures; and a cooling fan, located at the head or tail of the PCM heat absorber plate, used for air-cooling heat dissipation of the battery pack and the PCM heat absorber plate. This invention, using a PCM heat absorber plate, can enhance the thermal conductivity and heat absorption capacity between batteries, thereby reducing local hot spots and temperature differences between batteries, achieving efficient thermal management.

The utility model provides a fresh air purification device and an air conditioner. A fresh air purification device comprises a shell, a first inlet, a second inlet, a purification device and an outlet. An air channel for air flow to pass through is formed in the body; the first inlet is formed in the shell and used for inputting outdoor fresh air into the air duct; the second inlet is formed in the shell and used for inputting indoor return air into the air duct; the purification device is arranged in the air duct and used for purifying outdoor fresh air and / or indoor return air flowing into the air duct; and the outlet faces the rear side of the shell, communicates with the air duct and is used for blowing the purified outdoor fresh air and / or indoor return air in the air duct into a room. The fresh air purification device solves the problem that air outlet of an existing fresh air purification device is prone to causing excessive body feeling temperature difference of a user.

The invention relates to the technical field of automobile part die-casting, in particular to a die-casting machine with cooling circulation for automobile refrigerant side support production, which comprises a die-casting rack, a melting hopper is arranged above the die-casting rack, and an injection device is arranged on one side of the die-casting rack. A fixed die assembly and a movable die assembly are arranged in the middle of the upper surface of the die casting rack, the fixed die assembly is fixedly installed on the side close to injection equipment, and a movable die driving assembly is arranged on one side of the movable die assembly. According to a thin-wall area and a thick-wall area formed after casting of the first flow channel and the second flow channel, a movable mold cooling deep flow channel, a movable mold cooling center deep flow channel, a movable mold cooling center shallow flow channel and a fixed mold cooling flow channel are designed, the thick-wall area is cooled preferentially, and the thickness of the thick-wall area is reduced; and the temperature difference between the thick-wall area and the thin-wall area is reduced.

The utility model relates to mould anti -overflow technology field discloses the injection molding mould anti -overflow mechanism of electric vehicle storage tail box casing, including the flow adjusting bin, the inside fixed water stop disc of static of flow adjusting bin, the one end surface rotatory mounting of water stop disc has movable water stop disc, the side surface mounting of flow adjusting bin is used for the self reset drive assembly of drive movable water stop disc rotation. The injection molding mould anti -overflow mechanism of electric vehicle storage tail box casing, through the mechanism can real -time perception mould local high temperature area, and automatically adjust fast this area cooling water flow, rapidly take away the heat accumulation, effectively reduce the mould temperature of this area, this directly improved the viscosity of contact high temperature area melt, make its flow resistance increase, thereby greatly weakened the ability of melt seepage into the parting surface gap, fundamentally suppressed the tendency of overflow because of temperature is too high.

The utility model discloses a kind of even temperature type magnetic stirrers, it is related to magnetic stirrers technical field, including magnetic stirrer body, the left and right sides of the magnetic stirrer body are fixed with support, and the upper end of left and right two supports is respectively fixed with vertical rod and guide rod, and the outside of the vertical rod is equipped with adjusting mechanism, and the outside of the guide rod is equipped with guide mechanism, between the adjusting mechanism and guide mechanism simultaneously several groups of heating ring assembly are installed. The even temperature type magnetic stirrer, several groups of heating ring assembly are driven synchronous adjustment by adjusting mechanism and guide mechanism, to adapt to the container of different solution height, reduce up and down temperature difference, realize the cooperation of stirring and even temperature heating.